Strainer or filter, particularly for petrol filling nozzles



April 7, 1931.

J. ZWICKY 'STRAINEH OR FILTERPARTICULARLY FOR PETROL FILLING NOZZLES Filed July 5, 1927 2 Sh/eets-Sheet l Patented Apr. 7, 1931 JEAN ZWICKY, OF FARNEAM BGYAL, ENGLAND STRAINER OR FILTER, PARTICULAR/LY F Application filed July 5, 1927, Serial No. 203,682, and in This invention relates to filling nozzles em ployed, commonly at the end of a length ofl flexible hose, for supplying gasoline to the tanks of motor vehicles, air craft and so forth.

The object of the invention is a filling nozzle equipped with a filter and a valve, the filter being removable for cleaning or replacement when necessary. The invention includes constructions of filter and filter body or casing, and dispositions of inlet, outlet, valve, valve operating means and filter, enabling the filter effectively to remove all solid matter from the gasoline without undue obstruction of the flow, facilitating the removal of the filter, and l5 protecting the valve. These and other features of the invention will appear from the embodiments described below, in the appended claims.

In the drawings Figure 1, 2, and 3 are axial sections through different forms of fillino' nozzles, Figure 2 being diagrammatic.

4 ach filling nozzle comprises a lter body having an inlet adapted for connection to a fiexible hose, and an outlet or -delivery adapted for connection to or insertion in a tank, a removable filter making joint with the body, and a poppet valve normally closing the outlet. l

In the construction of Figure 1 there is a cylindrical filter body 1, with an inlet tube 2 at right angles to it forming a handle, and a delivery tube 3 coaxial with it. The mouth of the delivery tube is made smoothly convergent and the lip is cut back as indicated at 4: and 5 respectively to give a smooth flow. When not in use the tube 3 is closed by a cap 6 sprung on to it.

In the filter body is a filter or straining member .which in all the constructions consists of a skeleton frame upon which are stretch-ed sheets of perforated metal, and wire gauze of progressively finer mesh. In Figure 1 the skeleton frame comprises end rings 7 joined by longitudinal bars such as 8 around which are the layers 9 of perforated metal and gauze. The upper ring 7 fits within and upon the shoulder 38 of the body 1 intermediate between the inlet tube 2 and the delivery .3. The filter body is closed at the upper end by a plate 10 secured by a and are defined I ring 11 whi hinged together` at one A gether at the other by a b Great Britain July a bevelled groove fitting the of the filter body and end plate. end of the skeleton R PETROL FILLING NOZZLES ch is divided and the two halves end and drawn toolt,

the ring having bevelled fianges The lower vframe is also closed. A

valve stem 12 is guided in the gland 13 of a stuffing box in the end plate 10 and in the bottom of the frame and carries at its lower end a valve 14 seating upon valve stem has an enlarged end 15 and is reduced at 16 adjacent parts are entered laterally upon the valve. A sleeve 18 secures the parts y in position the Spring seating. one hand and on the other h 8 down upon the body 1.

from its handle 2.

and is itself hel 19 which presses the outlet. The

the end, and these into a boss 17 d upon them by the valve on Aits Another spring 2O serves on the to take up wear in the gland 13 and to press the frame 7, The valve is lifted seating by a lever 21 pivoted on the end plate 10 conveniently adjacent to the A partiti on wall 22 erected upon f the lter frame forms a d a cone 23 entering e gasoline downward eversing its direction of motion to escape between the cone and the wall 2. The result o f this lconstruction is to cause the deposit of the coarser impurities in the collecting chamber,

the choking .of the filter.

In the construction of Figure 2 the filter bodv 24 a let 26, while the outlet In this construction handle, and the val nd filter 25 are coa and so delay xial with the in- 27 is bent at an angle. the filter body forms the ve is operated by a bent lever. `To prevent ingress of rain while pergress of air the outlet 27 is fitted mitting e with acone deflector rest upon the flange In Figure 3 the `end plate a bridge piece 30 which swi the studs neath the head of the other. 32 screws into a central boss piece and bears upon the end plate, it upon the 4filter bridge piece against t The stem 28 having webs 29 which of the tank.

10 is fastened by ngs upon one of 31 and when in position engages be- 33 of the valve 14 h on the bridge forcing dy `and pressing the he heads of the studs.

as a quick thread An abutment o in; for instance it may have an internal fiange 36 engaged between the boss of the' end plate and the valve operating handle. In lieu of the delivery tube 3 the nozzle of Figure 8 is shown as fitted with an adapter .S'for making` a screw connection with the flange of a petrol tank.

I claim:

l. A filling nozzle comprising a cylindrical body having a lateral inlet near one end and an outlet coaxial with the body at the other, a shoulder in said body adjacent said inlet, a removable end plate on said body at the end remote from the outlet, a stuffing box and gland in said end plate, a filter seating upon said shoulder, a spring compressed between said filter and said gland, and a valve seating upon said outlet and having a stem extending through said gland.

2. A filling nozzle comprising a cylindrical body. a removable end plate closing one end of said body and containing a gland, an inlet adjacent said end plate, a shoulder on the ody, a cylindrical filter having an end ring at one end seating upon said shoulder and closed at the other end, a valve stem passing through said gland and said closed end of the filter, a valve loose upon said stem seating upon the other end of said body, means holding said filter upon said shoulder` and a spring compressed between the closed end of' said filter and said valve and pressing said valve upon its seating.

3. A filling nozzle comprising a cylindrical body, a removable end plate closing one end of said body and containing a gland, an inlet adjacent said end plate, a shoulder on the ody, a cylindrical filter having an end ring at one end seating upon said shoulder and closed at the other end. a valve stem passing through said lgland, a valve upon said stem closing the other end of said body, a spring compressed between said gland and said closed end ofthe filter compressing said gland and holding said filter upon its shoulder, and a second spring compressed between said closed end of the filter and the valve, and pressing the valve upon its seating.

4. A filling nozzle comprising a. cylindrical body with a concentric outlet at one end and t a lateral inlet at the other, a removable end plate closing the inlet end of said body and containing a. gland, a shoulder in said body between the inlet and the outlet, a cylindrical filter closed at one end and having an end ring at the other seating upon said shoulder, a valve stem passing through said gland and the closed end of the filter, a valve loose upon said stem seating upon the outlet, a spring compressed between said gland and the closed end of said filter, a second spring compressed between said closed end of the filter and said valve, and means for lifting said valve against the action of its spring.

5. A filling nozzle comprising a cylindrical body having an inlet and outlet, a shoulder on the body adjacent said inlet, a cylindrical filter having an end ring at one end seating upon and making joint with said shoulder and closed at the other' end, means tending to hold said filter upon said shoulder, a valve stem eo-aXial with said filter, a valve on said stem seating upon the outlet, and a spring compressed between said valve and the adjacentclosed end of said filter and pressing said valve upon its seating.

In testimony whereof, I name to this specification.

JEAN ZVVICKY.

have signed my 

